Conditions at Keramas in July
July: Mid-Year Trade-Wind Grind
July offers the biggest average swell of the year at about 3-4ft (1.1m) and the highest average period, 14.3s. The source is strongly SSW (45.2%) and S (44.6%), with a small SSE addition. There is serious size in the mix: SSW has 32.5% in the 3-5ft (1-1.5m) range, 3.5% in the 5-6ft (1.5-2m) range, and even a trace of 6-8ft (2-2.5m) energy. S direction adds another 28.9% at 3-5ft. The reef is feeling plenty of southwest groundswell.
Unfortunately, ideal wind sits at just 1%. The SE trades are at their strongest-SE 45.9%, ESE 35.6%, SSE 10.1%-with many readings at 10-20kph and some at 20-30kph. Onshore wind ruins the surface for most of the month. This is the heart of the dry season: precipitation is only 0.97mm/day, air temp averages 25.3°C (21.8-29.5°C), and water temp cools to 27.0°C.
Average Spot conditions at Keramas in July
Swell history for July
Wind history for July
Swell quality
Analyze the groundswell consistency at Keramas during July. Based on historical data, there is a % probability of groundswell occurring this month. The chart below provides a detailed breakdown of the average wave height distribution, offering deep insights into the swell quality and surf potential you can expect at Keramas for your next trip in July.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Keramas for July. Our analysis shows that favorable offshore or side-shore winds coincide with surfable swell approximately % of the time. The accompanying graph illustrates the average size distribution of waves during these optimal wind windows at Keramas.